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authorJarkko Nikula <jarkko.nikula@linux.intel.com>2015-02-16 10:26:28 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-02-17 18:30:48 +0100
commitf8f87c03627c464cbb14651c37da86f4f9f92059 (patch)
tree8080d1ba0e45ed6d69b2e2ffe1f63fdb6a830f91 /drivers/acpi/acpi_lpss.c
parent92082a8886f30a1c492a31ac4b5a4966bb64b1a6 (diff)
Revert "ACPI / LPSS: Remove non-existing clock control from Intel Lynxpoint I2C"
Revert commit b893e80e3147 ("ACPI / LPSS: Remove non-existing clock control from Intel Lynxpoint I2C") because it causes touchpad to not load on Dell XPS13. Regression is a clear indication that not only some early prototype version of Lynxpoint I2C but also newer versions can be doing clock gating even documentation does not state it. Therefore it is best to revert since this clock gating haven't caused known issues on those Lynxpoint version which don't do clock gating. Reported-by-and-tested-by: Chris Rorvick <chris@rorvick.com> Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpi_lpss.c')
-rw-r--r--drivers/acpi/acpi_lpss.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 08fbff507dc4..a7ee533c1cef 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -125,7 +125,7 @@ static struct lpss_device_desc lpt_dev_desc = {
};
static struct lpss_device_desc lpt_i2c_dev_desc = {
- .flags = LPSS_CLK | LPSS_LTR,
+ .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_LTR,
.prv_offset = 0x800,
};